CN102423860A - Fixture for milling reverser holes on internal circulation ball nut and locating machining method thereof - Google Patents
Fixture for milling reverser holes on internal circulation ball nut and locating machining method thereof Download PDFInfo
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- CN102423860A CN102423860A CN2011102967504A CN201110296750A CN102423860A CN 102423860 A CN102423860 A CN 102423860A CN 2011102967504 A CN2011102967504 A CN 2011102967504A CN 201110296750 A CN201110296750 A CN 201110296750A CN 102423860 A CN102423860 A CN 102423860A
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- threaded mandrel
- milling
- mill
- back device
- ball nut
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Abstract
The invention relates to the locating machining field of mechanical drilling, and discloses a fixture for milling a reverser hole on an internal circulation ball nut and a locating machining method thereof. The fixture comprises a thread spindle, an open gasket and a hexagon nut, wherein, the end surface of the ball nut is screwed on the milling thread spindle and firmly sticks to the inside end surface of the milling thread spindle, and then the hexagon nut is screwed on the thread spindle for locking. In the locating machining method, by using the fixture, a reverser hole is machined on the internal circulation ball nut through a locating reference on the milling thread spindle. The fixture and the locating machining method thereof have the beneficial effects that the design is simple, and the drilling machining efficiency is greatly improved; by adopting the milling thread spindle to machine, the fixture is simple; and by adopting a numerical control machine tool to machine, the machining period is shortened.
Description
Technical field
The present invention relates to location, mechanical hole manufacture field, more particularly, relate to the positioning and processing method in circulation nut back device hole in a kind of being used for.
Background technology
The location is the conventional means in machining and the part assembling, and positioning accuracy is the basis that guarantees crudy and assembly quality, guarantees the setting accuracy on work design, helps improving the overall precision level of engineering goods.Existing pinpoint means and method more also very accurately, be exactly comparatively typical placement technology now like computer numerical controlled location, accomplish the zero tolerance of morpheme fully.But the enterprise that the streamline fine finishining that should technology be fit to batch machining is produced; As far as metallurgical manufacturing enterprise; Also have comparatively high-precision requirement; But be simple separately standard component maintenance activity basically, adopt artificial manual location technology usually, its shortcoming is exactly far not reach the requirement of numerical control locating accuracy; Its advantage is not need to be equipped with numerically controlled processing equipment with expending huge fund.
The processing of ball nut hole in piece part is more typical, and GCr15 material itself also is difficult to processing, on this type material parts, wants drilling bore hole, and difficulty is very big.With laser and these holes of spark machined,, be difficult to reach the designing requirement of part because of reasons such as the precision in hole, surface roughness, efficient have.
Traditional interior circulating ball nut back device hole processes on drilling machine with special-purpose drill jig.The structure more complicated of drill jig, processing and assembling, dismounting be difficulty very all, when ball nut in batches hour, tediously long drill jig process time, directly have influence on production cycle of product.And on drilling machine, add man-hour with drill jig, and the human factor proportion is bigger, and the levels of precision of drill jig itself and workman's qualification all have influence on product quality.This type hole is still at present a great problem in the machining at home, and a lot of companies need import or guarantee borehole accuracy and output with the drilling hole machine tool of ball-screw nut back device special use, and the special purpose machine tool price is hundreds of thousands, at most nearly 1,000,000 at least.The anchor clamps of the company's design usefulness that has guarantee drilling accuracy, and anchor clamps processing requires very high for operation, and productivity effect is not high, and can cause unstable product quality.
Summary of the invention
The technical problem that solves
It is big to the objective of the invention is to overcome in the prior art back device hole difficulty of processing on the ball nut; Precision is difficult to guarantee; Productivity effect is not high, and the problem of unstable product quality provides a kind of positioning and processing method that is used for interior circulating ball nut back device hole.
Technical scheme
The object of the invention is realized through following technical scheme:
Milling of circulating ball nut back device hole used frock in of the present invention, and it comprises mills with threaded mandrel, open washer and hex nut; When on interior circulating ball nut, processing back device hole; To mill with threaded mandrel fixedly clamping on milling machine; The interior circulating ball nut in back device to be processed hole screwed in to mill use threaded mandrel, paste the jail and mill and use the threaded mandrel inner side end, the screw-in hex nut is locked on milling with threaded mandrel again; Last according to milling with positioning reference on the threaded mandrel and location dimension, mill back device hole.
The positioning and processing method in circulating ball nut back device hole in of the present invention, it may further comprise the steps:
A) get one-tenth to be processed and mill optical axis, according to the dimensional requirement car of actual processing, mill out end face and thread surface with threaded mandrel;
B) confirm to mill central point with coincide point adjacent crest on axle at center at the bottom of the threaded mandrel tooth and center, back device hole; Back gauge size L1 according to back device hole on the circulating ball nut in to be processed; Lead L2; Convert L0=L1+L2/2, then L0 is the central point that mills with coincide point adjacent crest on axle at center at the bottom of the threaded mandrel tooth and center, back device hole; The back gauge size L1 in back device hole is a known dimensions, and the center in back device hole (being LI size assigned address) is corresponding to milling with center at the bottom of the threaded mandrel tooth.The problem that need consider when the correct position of on threaded mandrel, finding L1 is design, the center at the bottom of the threaded mandrel upper tooth is bad to be confirmed, so find the center of the adjacent crest of threaded mandrel through conversion.At the bottom of milling,, and mill with crest phase difference of half helical pitch L2/2 adjacent on the threaded mandrel, i.e. size L0=L1+0.5 * L2 with center, back device hole coincide point with the threaded mandrel upper tooth;
C) will pass through steps A) processing mill with threaded mandrel fixedly clamping on milling machine, according to B) size of L0 in the step, milling the central point that finds said adjacent crest with threaded mandrel through Digit Control Machine Tool; Move axially workbench and on milling with threaded mandrel, mill datum level, the datum hole that drills and reams is on the same section for central spot same Up Highway UHW on milling with threaded mandrel of the center that guarantees datum hole and described adjacent crest like this; Wherein, the datum hole center with mill the distance of using the threaded mandrel inner side end and be L3;
D) interior circulating ball nut is screwed in to mill use threaded mandrel, paste the jail and mill and use the threaded mandrel inner side end, on milling, screw in open washer again, hex nut is locked with threaded mandrel; Prevent that ball nut from play taking place in process;
E) at step D) the basis on, with datum level and datum hole location, workbench moves axially the distance of size L, wherein L=L1+L3 mills back device hole.
Beneficial effect
Than prior art, advantage of the present invention is:
(1) the present invention is through the benchmark location dimension of threaded mandrel, and machining accuracy is improved;
(2) processing method in back device of the present invention hole, simplicity of design, the boring working (machining) efficiency increases substantially;
(3) employing is milled with threaded mandrel processing, and frock is simple, and adopts Digit Control Machine Tool processing, has shortened the process-cycle.
Description of drawings
Fig. 1 is the structural representation that mills with frock of the present invention;
Fig. 2 is the enlarged diagram with threaded mandrel that mills that mills with frock of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the amplification view of ball nut of the present invention.
Label declaration among the figure:
1-mills with threaded mandrel 2-open washer 3-hex nut 4-ball nut 5-back hole 6-datum hole.
The specific embodiment
Below in conjunction with Figure of description, the present invention is described in detail.
In conjunction with Fig. 1, interior milling of circulating ball nut back device hole of the present invention used frock, and it comprises mills with threaded mandrel 1, open washer 2 and hex nut 3; When on interior circulating ball nut, processing back device hole 5; To mill with threaded mandrel 1 fixedly clamping on milling machine; Interior circulating ball nut 4 screw-ins in back device to be processed hole 5 are milled with threaded mandrel 1, paste the jail and mill, on milling, screw in hex nut 3 lockings again with threaded mandrel 1 with threaded mandrel 1 inner side end; Last according to milling with positioning reference on the threaded mandrel 1 and location dimension, mill back device hole 5.
In conjunction with Fig. 2 to Fig. 4, interior milling of circulating ball nut back device hole of the present invention used frock, may further comprise the steps:
A) get one-tenth to be processed and mill optical axis, according to the dimensional requirement car of actual processing, mill out end face and thread surface with threaded mandrel 1;
B) confirm to mill central point with coincide point adjacent crest on axle at center at the bottom of threaded mandrel 1 tooth and 5 centers, back device hole; Back gauge size L1 according to back device hole on the circulating ball nut 4 in to be processed; Lead L2; Convert L0=L1+0.5 * L2, then L0 is the central point that mills with coincide point adjacent crest on axle at center at the bottom of threaded mandrel 1 tooth and 5 centers, back device hole;
C) will pass through steps A) processing mill with threaded mandrel 1 fixedly clamping on milling machine, according to B) size of L0 in the step, milling the central point that finds said adjacent crest with threaded mandrel 1 through Digit Control Machine Tool; Move axially workbench and on milling with threaded mandrel 1, mill datum level, the datum hole 6 that drills and reams is on the same section for central spot same Up Highway UHW on milling with threaded mandrel 1 of the center that guarantees datum hole 6 and described adjacent crest like this; Wherein, datum hole 6 centers use the distance of threaded mandrel 1 inner side end to be L3 with milling;
D) interior circulating ball nut 4 screw-ins are milled with threaded mandrel 1, paste the jail and mill, on milling, screw in open washer 2, hex nut 3 lockings again with threaded mandrel 1 with threaded mandrel 1 inner side end;
The correct position of finding back device hole on the good ball nut of clamping, process first back device hole after, as benchmark, through circumferential adjustment dividing head with move axially workbench and can process other back device hole.This tool structure is simple, and localization method is simple, and precision is high.
Below schematically the present invention and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of embodiment of the present invention, and practical structure is not limited thereto.So,, under the situation that does not break away from the invention aim,, all should belong to protection scope of the present invention without creationary frame mode similar and the embodiment of designing with this technical scheme if those of ordinary skill in the art is enlightened by it.
Claims (2)
1. frock is used in milling of interior circulating ball nut back device hole, it is characterized in that, it comprises mills with threaded mandrel (1), open washer (2) and hex nut (3); When on interior circulating ball nut, processing back device hole (5); To mill with threaded mandrel (1) fixedly clamping on milling machine; Interior circulating ball nut (4) screw-in in back device to be processed hole (5) is milled with threaded mandrel (1), paste the jail and mill, milling with upward screw-in hex nut (3) locking of threaded mandrel (1) again with threaded mandrel (1) inner side end; Last according to milling with positioning reference and location dimension on the threaded mandrel (1), mill back device hole (5).
2. the positioning and processing method in interior circulating ball nut back device hole is characterized in that it may further comprise the steps:
A) get one-tenth to be processed and mill optical axis, according to the dimensional requirement car of actual processing, mill out end face and thread surface with threaded mandrel (1);
B) confirm to mill central point with coincide point adjacent crest on axle at center at the bottom of threaded mandrel (1) tooth and center, back device hole (5); Go up the back gauge size L1 in back device hole according to circulating ball nut (4) in to be processed; Lead L2; Convert L0=L1+0.5 * L2, then L0 is the central point that mills with coincide point adjacent crest on axle at center at the bottom of threaded mandrel (1) tooth and center, back device hole (5);
C) will pass through steps A) processing mill with threaded mandrel (1) fixedly clamping on milling machine, according to B) size of L0 in the step, milling the central point that finds said adjacent crest with threaded mandrel (1) through Digit Control Machine Tool; Move axially workbench and on milling with threaded mandrel (1), mill datum level, the datum hole that drills and reams (6) is that the central spot for the center that guarantees datum hole (6) and described adjacent crest goes up on the same section of same Up Highway UHW in milling with threaded mandrel (1) like this; Wherein, datum hole (6) center is L3 with the distance of milling with threaded mandrel (1) inner side end;
D) interior circulating ball nut (4) screw-in is milled with threaded mandrel (1), paste the jail and mill, milling with upward screw-in open washer (2), hex nut (3) locking of threaded mandrel (1) again with threaded mandrel (1) inner side end;
E) at step D) the basis on, with datum level and datum hole (6) location, workbench moves axially the distance of size L, wherein L=L1+L3 mills back device hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296750 CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296750 CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102423860A true CN102423860A (en) | 2012-04-25 |
| CN102423860B CN102423860B (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110296750 Expired - Fee Related CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
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| CN (1) | CN102423860B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259933A (en) * | 2014-09-05 | 2015-01-07 | 大连高金数控集团有限公司 | Ball nut phase measuring device and corresponding nut return device hole machining method |
| CN110539203A (en) * | 2019-07-30 | 2019-12-06 | 陕西汉江机床有限公司 | Radial tool setting device and method for turning spiral groove of ball nut |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1052427B1 (en) * | 1999-05-14 | 2004-07-14 | Goodrich Actuation Systems Ltd | Actuator |
| CN1563745A (en) * | 2004-04-16 | 2005-01-12 | 于宙 | Axial reverse ball leading screw assistant |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| CN201526654U (en) * | 2009-10-09 | 2010-07-14 | 陕西汉江机床有限公司 | Ball screw assembly |
| CN102011845A (en) * | 2010-12-29 | 2011-04-13 | 江苏瑞安特机械集团有限公司 | Large-load and high-speed ball screw pair |
-
2011
- 2011-09-30 CN CN 201110296750 patent/CN102423860B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1052427B1 (en) * | 1999-05-14 | 2004-07-14 | Goodrich Actuation Systems Ltd | Actuator |
| CN1563745A (en) * | 2004-04-16 | 2005-01-12 | 于宙 | Axial reverse ball leading screw assistant |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| CN201526654U (en) * | 2009-10-09 | 2010-07-14 | 陕西汉江机床有限公司 | Ball screw assembly |
| CN102011845A (en) * | 2010-12-29 | 2011-04-13 | 江苏瑞安特机械集团有限公司 | Large-load and high-speed ball screw pair |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259933A (en) * | 2014-09-05 | 2015-01-07 | 大连高金数控集团有限公司 | Ball nut phase measuring device and corresponding nut return device hole machining method |
| CN110539203A (en) * | 2019-07-30 | 2019-12-06 | 陕西汉江机床有限公司 | Radial tool setting device and method for turning spiral groove of ball nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102423860B (en) | 2013-12-25 |
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Effective date of registration: 20151224 Address after: Taicang City, Jiangsu province science and Technology Park 215400 Jianxiong Road No. 20 Patentee after: CHINA RUNHAI PRECISION TECHNOLOGY Co.,Ltd. Address before: 210039, No. 8, long Tibet Road, Yuhua Economic Development Zone, Nanjing, Jiangsu Patentee before: UNID NEFF NANJING TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |